Swinging-machine.



N0. 70l,372. Patented June 3, I902.

F. J. MCDUNNELL.

SWINGING MACHINE.

(Application filed July 30, 1901.)

(No Model.) 7 2 Sheets-Sheet I.

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No. 70l,372. Patented June 3, 1902 F. McDONNELL.

SWINGING MACHINE.

(Application filed. July 30, 1901.) (No Model.) 2 Sheets-Sheet 2.

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of gearing comprising a main shaft 6, having F ICE...

FRANCIS J. MCDONNELL, OF NElV BEDFORD, MASSACHUSETTS.

SWINGING MACHINE.

SPECIFICATION forming part of Letters Patent No. 701,372, dated June 3,1902.

Application filed July 30, 1901.

T0 at whom it may concern:

Beit known that I, FRANCIS J. MODONNELL, a citizen of the United States,and a resident of New Bedford, in the county of Bristol and State ofMassachusetts, have invented certain new and useful Improvements inSwinging- Machines, of which the following is a full, clear, and exactdescription.

This invention relates to improvements in swinging-machines; and theobject is to pro vide a machine of this character so constructed as toautomatically cause the swinging motion of the carriage during adownward movement thereof, thus particularly adapting the device for usein the care of babies or children or for older persons when a hammock orthe like is used as a carriage.

Iwill describe aswinging-machine embodying my invention and then pointout the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of a swingingmachine embodying myinvention. Fig. 2 is an end View thereof. Fig. 3 is a'section on theline 3 3 of Fig. 4, showing the operatinggear employed; and Fig. 4 is 'aplan View thereof.

Referring to the drawings, 5 designates a casing designed to be securedto a ceiling or other overhead support. This casing is closed at itsends, the sides,,and bottom. One of the sides or ends, however, may bemade removable. Arranged within the casing is a chain its ends extendedthrough the side walls of the casing, and on the outer ends arewinding-drums 7 and 8. Rigidly attached to the shaft within the casingis a large windingdrum 9, around which is wound a draw line or cable 10.This draw line or cable is attached at its inner end to said drum 9, andits other end extends through an opening in the bottom wall of thecasing, so that it may be readily grasped for turning the drum in onedirection. Also attached to the shaft 6 at one side of the drum 9. is aratchet-wheel 11, engaged by a pawl 12, carried by a gear-wheel 13,loosely mounted on said shaft 6. The

pawl 12 has a shaft portion extending loosely Serial No. 70,241. (Nomodel.)

through an opening in the gear-wheel13, and on the opposite end of saidshaftis an arm 14, from which a spring 15 extends to and is connectedwith a lug on the gear-wheel. This spring serves to hold the pawlyieldingly in engagement with the ratchet-wheel.

The gear-wheel 13 meshes with a pinion 16, mounted on a shaft 17,whichbears a gearwheel 18, meshing with a pinion 19 on a shaft 20, andon this shaft 20 is secured a gearwheel 21, engaging with a pinion 22 ona shaft 23, which has its end extended outward through the side walls ofthe casing, and each end is provided with double cranks 24: 25.

Suspendingcords or cables 26 27 engage around the pulleys 7 and 8. Thelower ends of these suspending cords or cables are designed to support acarriage, which may be, as here shown, in the form of a cradle 28, or itmay be a hammock or a chair or similar article.

As here shown, the cords or cables 26 are engaged with a rod 29, fromwhich the carriage is swung by means of hangers 30. The rocking motionof the carriage is imparted from the shaft 23, which of course isoperated from the chain of gearing before described.

On each side of the casing 5 is a rock-lever 31, the two rock-leversbeing mounted on a shaft 32, having hearings on the side walls of thecasing. From the crank 24 a link-rod 32 extends to a pivotal connectionwith the upwardly-extended portionof the rock-lever, and from the cranka link-rod 33 extends to a connection with the lower portion of saidrock-lever. As the cranks 24 and 25 are extended in opposite directions,it is obvious that during the rotation of the shaft 23 a pulling strainwill be imparted to one of the link rods, while a pushing strain isoperated against the other. It will be here stated, however, that thesame rocking result would be obtained were one of the links-say theupper oneomitted.

The lower portions of the rock-levers 31 carry guides 34, through whichthe suspending cords or cables pass. In operation by drawing downward onthe end of the cord or cable 10 the shaft 6 will be rotated to raise thecarriage to its uppermost position. During this movement the pawl 12will slide over the ratchet-wheel, the chain of gearing remainingstationary. Upon releasing the draw cord or cable the carriage with itsweight will descend, and as the shaft 6 will now through the agency ofthe pawl 12 be in locked engagement with the gear-wheel 13 motion willbe imparted to the chain of gearwheels, causing the crank-shaft 23 torock the rock-levers 31, and this obviously will cause the swingingmovement of the carriage.

It is obvious that by the chain of gearing employed the swinging motionof the carriage will be much faster than the downward movement. It isfurther obvious that by adding to or decreasing the chain of gearing anydesired speed will be secured.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a swinging-machine, a suspended chain ofgearing, a carriage, cable connections between the carriage and thegearing, a crank-shaft operated by the gearing, and connections betweensaid shaft and the cables, substantially as specified.

2. In a swinging-machine, a suspended chain of gearing, a carriage,cable connections between the carriage and gearing, a crankshaft,rock-levers' on opposite sides of the casing, connections between saidrock-levers and cranks on the crank-shaft, and guides carried by therock-levers and through which the cables pass, substantially asspecified.

3. In a swinging-machine, a casing designed to be secured to an overheadsupport, a main shaft in the casing, drums mounted on the outer ends ofsaid shaft, cords or cables engaging the said drums, a carriagesupported by the cords or cables, a winding-drum on the shaft, means forrotating the winding-drum and shaft, a gear-wheel loosely mounted on theshaft, means for locking said gear-wheel in connection with the shaft, acrank-shaft, a train of gearing between said crank-shaft and saidgear-wheel, rock-levers on opposite sides of the casing, connectionsbetween said rock-levers and cranks on the crank-shafts, and guidescarried by the rock-levers and through which the cords or cables pass,substantially as specified.

4c. In a swinging-machine, a casing adapted to be secured to an overheadsupport, a main shaft arranged in the casing, a windingdrum on saidshaft within the casing, a cord or cable extended from said drum throughan opening in the bottom of the casing, a ratchetwheel mounted on saidshaft, a gear-wheel loosely mounted on the shaft, a spring-pressed pawlcarried by the gear-wheel for engaging with the ratchet-wheel, drums onthe outer ends of said shaft, a carriage having cord or cableconnections with said drums, a crankshaft having double cranks at itsopposite ends, a chain of gearing between said crankshaft and saidgear-wheel, rock-levers on opposite sides of the casing, the saidrock-levers being fulcrumed at their centers, linkrods extended from thecrank members respectively to the upper and lower portions of thelevers, and guides on the levers through which the carriage-suspendingcords or cables pass, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANCIS J. MCDONNELL.

Witnesses:

MAYHEW R. HITCH, LIZZIE A. CHURCH.

